Photonic quantum technologies represent a promising platform for several applications,
ranging from long-distance communications to the simulation of complex phenomena …

Boson sampling is a computational problem that has recently been proposed as a candidate
to obtain an unequivocal quantum computational advantage. The problem consists in …

Entangled photon pairs are a critical resource in quantum communication protocols ranging
from quantum key distribution to teleportation. The current workhorse technique for …

Assisted by the rapid development of photonic integrated circuits, scalable and versatile chip-
based quantum light sources with nonlinear optics are increasingly tangible for real-world …

Future quantum computation and networks require scalable monolithic circuits, which
incorporate various advanced functionalities on a single physical substrate. Although …

Chip-integrated nonlinear photonics holds the key for advanced optical information
processing with superior performance and novel functionalities. Here, we present an …

Photon entanglement is at the basis of many protocols in photonic quantum technologies,
from quantum computing to simulation and sensing. The generation of entangled photons in …

Reliable generation of single photons is of key importance for fundamental physical
experiments and to demonstrate quantum protocols. Waveguide-based photon-pair sources …

Entangled photon pair sources based on bulk optics are approaching optimal design and
implementation, with high state fidelities, spectral purities and heralding efficiencies, but …

Plasmonic nanoantennas mediate far and near optical fields and confine the light to
subwavelength dimensions. The spatial organization of nanoantenna elements is critical as …